Ultra High Strength Sucker Rod
¡¤ Designed to be used with moderate to heavy loads in non-corrosive or effectively inhibited wells. The ultra high strength sucker rod is using AISI 4130 special alloy steel to manufacture.
¡¤ Compared with Grade D, Ultra High Strength Sucker Rod has higher tensile strength (965~1195 MPa), surface hardness (HRC¡Ý42) and surface residual compress stress (¡Ü-200MPa). Also the rods provide with higher fatigue strength.
¡¤ The unique of the ultra high strength sucker rod is that the rod has a thin compression layer 10-15% at the rod surface that remains under compression even under normal operating tensile loads.
|
SPEC
(in) |
Length
(M) |
Mechanical Characteristics |
|
|
Hardness |
Surface Residual Compress Stress
(MPa) |
Tensile Strength
(MPa) |
Fatigue Strength |
|
|
Surface Hardness
(HRC) |
Core Hardness
(HB) |
|
|
¦Ò0.1 |
Circulation Cycles |
|
|
5/8 |
7.62, 8.0, 8.5, 9.14 |
¡Ý42 |
¡Ý224 |
¡Ý-220 |
¡Ý965~1195 |
540 |
¡Ý1¡Á106 |
|
|
3/4 |
|
|
7/8 |
|
|
1 |
|
